#!/usr/bin/env python3

###############################################################################
# Copyright 2020 The Apollo Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
###############################################################################
"""File utils."""
import os


def list_files(dir_path):
    """List all sub-files in given dir_path."""
    return [
        os.path.join(root, f) for root, _, files in os.walk(dir_path)
        for f in files
    ]


def getInputDirDataSize(path):
    sumsize = 0
    filelist = list_files(path)
    for file in filelist:
        size = os.path.getsize(file)
        sumsize += size
    return int(sumsize)
